back on the firewatch again tonight-- conservation crews were busy in durango thinning out trees in a durango park today. reporter liz lastra spoke to people from the southwest conservation corps about what they're doing. adam tew is in class. today class is dalla mountain park in durango. "these last 3 days will be actual field time -- trigger time -- out practicing" the southwest conservation corps is using this training time to thin out forests minute thumbnail 06:47 pm and help reduce the spread of fires. "what we have here is an overgrown ecosystem and if a fire does start here not only does i t threaten area homes but it also threatens to desty the entire forest" kent grant with the colorado state forest service says cutting down trees is necessary in today's forests.