| Official Name: | Addi Walka |
| Pushpin Map: | Ethiopia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location within Ethiopia |
| Subdivision Type: | Country |
| Subdivision Name: | Ethiopia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Tigray |
| Subdivision Type2: | Zone |
| Subdivision Name2: | Debub Misraqawi (Southeastern) |
| Subdivision Type3: | Woreda |
| Subdivision Name3: | Dogu'a Tembien |
| Area Total Km2: | 66.61 |
| Timezone: | EAT |
| Utc Offset: | +3 |
| Coordinates: | 13.7167°N 57°W |
| Elevation M: | 2400 |
Addi Walka is a tabia or municipality in the Dogu'a Tembien district of the Tigray Region of Ethiopia. The tabia centre is in Kelkele village, located approximately 16 km northeast of the woreda town Hagere Selam.
The tabia stretches down from Dogu'a Tembien's northern ridges towards the Agefet valley. The highest place is the cliff under Arebay (2,500 m.a.s.l.) and the lowest place along Agefet River (1,728 m.a.s.l.).
From the higher to the lower locations, the following geological formations are present:[1]
See also: Soil in Dogu'a Tembien.
The rainfall pattern shows a very high seasonality with 70 to 80% of the annual rain falling in July and August. Mean temperature in Kelkele is 18.8 °C, oscillating between average daily minimum of 10.5 °C and maximum of 26.7 °C. The contrasts between day and night air temperatures are much larger than seasonal contrasts.[4]
As there are no permanent rivers, the presence of springs is of utmost importance for the local people. The main springs in the tabia are:[5]
In this area with rains that last only for a couple of months per year, reservoirs of different sizes allow harvesting runoff from the rainy season for further use in the dry season. Traditional surface water harvesting ponds, particularly in places without permanent springs, are called rahaya. Horoyo, household ponds, have been recently constructed through campaigns.[6]
The tabia centre Kelkele holds a few administrative offices, a health post, a primary school, and some small shops. There are a few more primary schools across the tabia. The main other populated places are:[7]
The population lives essentially from crop farming, supplemented with off-season work in nearby towns. The land is dominated by farmlands which are clearly demarcated and are cropped every year. Hence the agricultural system is a permanent upland farming system.[8] The farmers have adapted their cropping systems to the spatio-temporal variability in rainfall.[9]
The history of the tabia is strongly confounded with the history of Tembien.
Most inhabitants are Orthodox Christians. The following churches are located in the tabia:
In the main villages, there are traditional beer houses (Inda Siwa), often in unique settings, which are a good place for resting and chatting with the local people. Most renown in the tabia is Tkun Asgedom at Bet Moka'e.[5]
The main road Mekelle – Hagere Selam – Abiy Addi runs some 7–12 km south of the tabia. People have the choice to walk to Ala'isa or Tsigereda to find bus services to the towns. A rural access road (sometimes disused) links Addi Walka to the main asphalt road.
Its mountainous nature and proximity to Mekelle makes the tabia fit for tourism.[10]
The high variability of geological formations and the rugged topography invites for geological and geographic tourism or "geotourism".[11] Geosites in the tabia include especially the dissected, Grand Canyon-like landscapes.
A trekking route has been established in this tabia.[12] The track of Gh1, from south to north across the tabia, is not marked on the ground but can be followed using downloaded .GPX files.[13]
The facilities are very basic.[14] One may be invited to spend the night in a rural homestead or ask permission to pitch a tent. Hotels are available in Hagere Selam and Mekelle.